Apparatus for discharging fluids or bodies from containers.



G. J. GAWLEY.

APPARATUS FOR DISCHARGING FLUIDS 'OR BODIES FROM CONTAINERS.

APPLICATION FILED APR.24. I916.

1,256,305. 7 Patented Feb. 12, 1918.

4 SHEETS-SHEET 1.

ll M960. Al\ T 51 Jhl/QJLZZ/l? ii MMW- e. 1. GAWLEY.

APPARATUS FOR DISCHARGING FLUIDS 0R BODIES FROM CONTAINERS.

APPLICATION FILED APR. 24. 1916. 1,256,305. Patented Feb. 12, 1918.

4 SHEETS-SHEET 2- G. J. GAWLEY.

APPARATUS FOR DISCHARGING FLUIDS OR BODIES FROM CONTAINERS.

APPLICATION FILED APR.24,19I6.

1,256,305. Patented Feb. 12, 1918.

4 SHEETS-SHEET 3.

11513259569 Chi jq ru/enim."

Patented Feb. 12 1918.

4 SHEETS-SHEET 4.

G. J. GAWLEY.

APPLICATION mzo APR. 24. l9l6.

APPARATUS FOR DISCHARGING FLUIDS 0R BODIES FROM CONTAINERS.

ITEEI STATES PATENT FFIUE.

GEORGE TH-MES YGAWLEY, OF FLEET, ENGLAND.

To all whom. 't may concern 7 Be it known that l, G'noncn JAMES GAw- LIYHAS1fbj6Ot lot the King-of Great Brita-in, residing at Kent House, Fleet, Hampshire, England, have invented new and useful lin- ;provements 1'11 Apparatus for Discharging iFluids or Bodies Et'rorn Containers, of which :the following is a specification. I

My invention relates chiefly to apparatus for discharging liquids, under pressure, from a reservoir or com aIi-ner, the invention being especially applicable fioruse connection with dire extinguishers, althougl-i it can be applied in other .cases in which it ,is desired to deliver .a liquid. (gaseous "or other floody from a tank-or contai-ner in wh ch it is sstored, and according to .mv invent-ion I provide for utilizing the ordinary pressure of the atmosphere der the purpose.

To enable the invention to the fully understood I will describe the same by reference to the accompanying drawings, in which Figure 1 is :a sectional wi-ew illustrating the application of my invention in its sim- :plest torrn tozafsv'ringe.

Figs. .2 'ftO -'9 illustrate the application of my invention to a portable apparatus tor use as a time extinguisher, Fig. 2 being a long tudinal section of such apparatus, Figs. 3 and 4 views of the upper and lower ends of the sa-id apparatus, "Figs. 6 and 7 :sections on the line 5- 5.,-66 and 7- 7 respectively of Fig. :2, Fig. 8 1a section on tlhe line .8-8 of Fig.4, and -F 39 a View somewhat s milar to Fig. 2., but showing the position of the parts when the apparatus is filled with liquid rea-dg; afor discharge. v

F igs. .110'to12 illustrate a ifunther mod-Itication.

The arrangement of .mV invention shown in Fig. llco-mprises two cylinder-s A, B which respectively contain pistons A, 13 the rods of the said p stons being connected Joy a handle 0. -The cylinder A is at one end .Cl'QSQ'Cl against the pressure of th'e atmosphere while the other (cylinder .is provided with an ordinary nozzle .t-D. With this arrangemere it will line understood that when by means at "the ll-an dle C, the two pistons are drawn out simultaneously in their iCV-ll/Il ders, the cylinder B ic-an :he tilled with ili'quid while a vapcrnun will be termed beneath the piston the fcydinder A. 'When the pistons are sreleased thesatraospheeiic pressure "Specification of iaetters Patent.

Patented Feb. 12,1918.

Application filedA'piil 24, 19 1-6. Seria1No.-93,2B2.

will cause the upon the top of the piston A reject the movement of the piston B .to liquid from the cylinder B.

la the arrangement illustrated in Figs. 2 to 9 a. .cylinder is *divided into two parts by ;a partition, each of which parts contains a sliding piston, the said pistons being connected together tanden wise, so that they move simultaneously. One of .these chamhers is adapted .to have a vacuum formed in it while the other is desi ned to receive water or other liquid, orifices being ,pro- .vided *for the admission and escape of the air behind :both of the pistons and also an orifice in the liquid chamber for the admission :and discharge oi the liquid. Means are also provided for locking the pistons against the action of the vacuum.

In ,these (figures a indicates the vacuum cylinder and b a piston sliding therein, the said cylinder having the end 0 completely closed -'so as to preclude the a d-mission 20f air. d is the liquid container which. as shown, is made -sl-i ghtly .lar er than the cylinder a. hut attached thereto, and having arranged within it a piston e which ,is directly connected with the piston-b bv the rod'e d is anorifice in the end wall d on the cylinder (l which serves to allow the ,passage of air to and trom one side of the piston e.

The two cylinders a and (l are separated by a partition f having in it a stufling-hox through which the rod 0 slides and which .stuHing-box serves to prevent leakage from the cylinder d. The :eylinder cl has in it the elbow pipe f which projects through the {partition y and which serves to admit atmospheric air into contact with the gIDlSlEOIl '12 and also for the ejection of air from the cylinder a and the said cylinder (Z has also connected with it the pipe 9 through which the :cylinder (Z is Ifilled with liquid and through which such liquid is-also discharged.

in isan extension rod which tonnes :a quart of the piston rod e and which serves for operating the pistons b and e, the said .eX- .ten'sion rod [being made detachable from the rod e for a purpose hereinafter described.

The extension rod '7 is screw-threaded v{and has mounted upon it a nut ito which :a hand wheel 2" is fixed, the said nut having a 'flange 2' which can turn and slide within aL'socket j on the walld at the upper earl of the qt-finder d. extension into a boss is secured to the upper side of the piston e and said boss has its upper portion forked to provide oppositely disposed vertical slots Z* for a purpose-hereinafter described. The sides of the boss is are provided with oppositely disposed notches 7: which are engaged by spring pressed pawls k when the piston e is moved upwardly for the purpose of locking the pistons in raised position. These spring pressed pawls 70 are mounted for horizontal sliding movement in the lower part of the socket j and their adjacent ends are provided on their under sides with inclined portions which are engaged by the upper end of the boss is, when the boss is raised to force the pawls away from each other and hold them in this position until the notches it" are opposite the pawls, when said pawls will move toward one another under the action of their springs to lock the pistons in raised position.

' rod m Mounted within the socket j between the nut i and pawls 762, is a disk Z provided on itsunderside with oppositely disposed downwardly extending lugs l. having inclined outer faces which enter'the slots Z* in the boss when the-boss is raised. The disk Z is held in raised or inoperative position by means of a spring Z and when it is desired to release the pawls le from the notches is, this disk is moved downwardly by exerting pressure on the handwheel 2", andas the disk moves downwardly thelugs Z will descend in the slots Z* and the inclined outer faces of said lugs will engage theadjacent ends of the pawls k and move them apart to permit the pistons to be released. In order to prevent the piston e from turning so that the said slots 2* will be out of. position with relation to the said lugs, the piston rod 6 is made hollow and provided with a square guide m which slides upon'a square attached to the cover 0. The extremity of the hollow piston rod e adjacent to the piston e is so closed so as to prevent the admission of the air.

At the outer endof the delivery tube 9 is inserted a plug having a central orifice and over the said end of the tube 9 is screwed a nozzle 9 having a plug 9 drilled with orifices, one central hole at the outer end and two diverging holes therefrom. WVhen the plug 9 is screwed down on to the seating or face of the plug g all access of air or liquid from or to tube 9 is prevented. At the extreme end of nozzle 9 is a spray flap g which when elevated by the milled head g causes the jet from the plug g to be sprayed. The extension of the head on the nozzle 9 permits of the latter being easily turned in order to move the plug 9 from or to its seating on the plug {1 1 a The operation of the apparatus hereinbefore described is as follows:-.Assume the parts to be in the position shown'in Fig. 2, it now the nozzle be opened as shown and immersed in liquid and the piston e is moved from the position shown in the said figure to that shown in Fig.9, by the rotation of the hand wheel 2' a vacuum'will be formed in the cylinder at by the piston b and the cylinder (1 will simultaneously be filled 6 can be unscrewed from the piston e and removed, the said rod being placed in a tubular housing n adapted to, receive it. The pistons b and e are held tightly againstthe seatinga thereby preventing access Oftlll' to the peripheries of the said pistons until such time as the apparatus is required for use when it is only necessary to press against the hand wheel 2' with sufficient force to cause the lugs Z to'disengage the pawls 70 from the notches is? when the atmospheric pressure which enters through the angle pipe 7, and theorifice (P will act upon the pistons Z) and c, and cause their movement and the ejection of the liquid through the nozzle 9 V In both of theforegoing arrangements it is assumed that the vacuum is to be produced either by a direct pull or by hand operated mechanism. Such an arrangement, however, would necessarily limit the application of the invention, and I therefore in Figs. 10 to 12 illustrate the construction of an apparatus which can be operated by power derived from an external source.

In these figures 1 indicates the cylinder, and 2 the partition therein dividing it into two chambers 3 and 4. 5 and 6 are respectively the two pistons sliding in the said chambers 3 and 4 and connected tandemwise by the rod 7 so that they can move simultaneously. The chamber 3 is designed to have the air exhausted from it and the chamber 4 to be filled with water or-other liquidwhen the piston 6 is moved from the positionshown in Fig. 10 to that shown in Fig. 12, theliquid being drawn from any suitable source through a pipe 8 which also serves for the discharge of the liquid when the apparatus is used for extinguishing purposes. The liquid can, however, be filled-into the chamber in any other convenient manner. 9,

10 are the orifices for the discharge of theair from the chambers 3, 4, respectively, when the pistons 5, 6 are moved as described. To enable such movement of the pistons to be effected the piston 5 may be actuatedby compressed air passed through an orifice ll controlled by a screw operated valve 12, the

air being subsequently exhausted from the chamber 3 by connecting the valve to a suitable vacuum producing source so that the atmospheric pressure can be subsequently exerted above the pistons 5 and 6 to force them down and cause the piston 6 to eject the liquid in the chamber 4. It will of course be understood that after the exhaustion of the chamber 3 the valve 12 is closed.

For holding or looking the pistons 5 and 6 in the raised position till it is required to eject the liquid I advantageously provide the following means. On the upper side of the piston 6 is a boss 13 having notches 14, 14 with which engage sliding spring pawls 15 in a casing at the upper end of the chamber 4, as clearly shown in Fig. 12. Adjacent to the said pawls is a disk 16 provided with an external handle 17 and with an interior web 18 having inclined edges which cotiperate with the pawls in such a manner that when the handle 17 is pushed inward against the pressure of a spring 19 the pawls will be pushed apart and disengaged from the notches 14, 14 to release the piston 6 so that the atmospheric pressure on the pistons 5 and 6 will move the said piston 6 and eject the liquid through the pipe 8. A slot 20 is formed in the boss 13 to allow the web 18 to engage with and separate the pawls as described, and in order to prevent the pistons 5 and 6 from turning so that the said slot is out of position with relation to the web, the piston rod 7 is made hollow and provided with a square guide 21 which slides upon a square rod 22 attached to the lower end of the cylinder 1.

Although I have described my invention as applied for the discharge of liquids, it is to be understood that it is equally applicable for the discharge of gases or other fluids, or of solid bodies, for instance, projectiles.

Claims:

1. Apparatus for discharging liquid, gaseous or solid bodies by means of atmospheric pressure, comprising two chambers isolated from one another, means whereb a vacuum can be maintained in one cham er and a body to be discharged introduced into the other chamber and pistons in the two chambers connected to move in unison.

2. An apparatus for discharging liquid, gaseous or solid bodies by means of atmospheric pressure, comprising two chambers isolated from one another, and means connected together for simultaneously creating a vacuum in one of said chambers and introducing a body to be discharged into the other chamber, said means being acted upon by atmospheric pressure to discharge the body in the latter chamber.

3. Apparatus for discharging liquid, gaseous or solid bodies by means of atmospheric pressure, comprising two chambers isolated from one another, means whereby a vacuum can be maintained in one chamber and a body to be discharged introduced into the other chamber, pistons in the two chambers connected to move in unison and means for locking the said pistons against movement under atmospheric pressure, substantially as described.

4. An apparatus for discharging liquid, gaseous or solid bodies comprising two chambers isolated from one another, a piston mounted in each of said chambers connected to move in unison, means for operating said pistons whereby a vacuum will be created in one of said chambers while a body to be discharged is drawn into the other chamber, and means for locking said pistons against movement under atmospheric pressure.

5. An apparatus for discharging liquid, gaseous or solid bodies comprising two chambers, one of which is open to the atmosphere at each end, pistons mounted in each of said chambers, means connecting said pistons for joint movement, means for moving said pistons in one direction for drawing a body into the chamber having open ends and creating a vacuum in the other chamber, a boss connected to one of said pistons and provided with notches, and spring pawls mounted on one of said chambers adapted to enter the notches of the boss for locking the pistons against movement under atmospheric pressure.

6. An apparatus for discharging liquid, gaseous or solid bodies, comprising two chambers, one of which is open to the atmosphere at each end, pistons mounted in each of said chambers, means connecting said pistons for joint movement, means for moving said pistons in one direction for drawing a body into the chamber having open ends and creating a vacuum in the other chamber, a boss connected to one of said pistons and provided with notches, spring pawls mounted on one of said chambers adapted to enter the notches of the boss for locking the pistons, and means for preventing said pistons from rotating whereby the notches will be guided into engagement with the pawls.

GEORGE JAMES GAWLEY.

Witnesses:

JOHN E. BOWSFIELD, C. G. REDFERN.

Copies 0! this patent may be obtained for five cents each. by addressing the Commissioner of Patents,

Washington, D. C. 

